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This is my first year winterizing our 07 Mountaineer. However, with our previous rv (Terry TT), I never put antifreeze in any tanks. I just drained them the best I could. I know some water remained in them, but when it froze there was plenty of room for expansion. No different than putting a less-than-full container in a freezer. Am I all wet here? I don't see a need to waste all that antifreeze in the tanks. Everywhere else I agree to error on the side of caution. All comments are appreciated.
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